<tr class="uniformes_vestimentas">
  <td><%= f.collection_select :vestimenta_id, Vestimenta.all,:id,:nombre,{:label => ".",:prompt => "Elegir vestimenta"},{:class=>""} %></td>
  <td><%= f.text_field :tamanio,{:size=>"5",:label => "."}  %></td>
  <td><%= f.hidden_field :uniforme_id %></td>
  <td>
    <%= f.hidden_field :_destroy %>
    <%= button_to_function "Quitar", "quitarCampos(this)" %>
  </td>
</tr>